What is the scope of geometric dimension and appearance inspection of 45# steel pipe

45# steel pipe is widely used in various fields now, which is due to the good quality assurance of 45# steel pipe. 45# steel pipe not only has strict and tedious production process, but also has more steps in the quality inspection process.

Geometric dimension and appearance inspection of 45# steel pipe:
① 45# steel pipe wall thickness inspection: micrometer, ultrasonic thickness gauge, at least 8 points at both ends and record.
② Inspection for outer diameter and ovality of 45# steel pipe: caliper, vernier caliper and ring gauge, measure the maximum and minimum points.
③ 45# steel pipe length inspection: steel tape, manual and automatic length measurement.
④ 45# steel pipe bending inspection: straightedge, level ruler (1m), feeler gauge and fine line measure the bending degree per meter and the bending degree of the whole length.
⑤ Inspection for groove angle and blunt edge of 45# steel pipe end face: angle ruler and clamp plate.